Covestro Makrolon® 1260 Polycarbonate, Impact Grade

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Covestro Makrolon® 1260 Polycarbonate, Impact Grade
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Impact Modified
Material Notes:	ISO 7391-PC,MPR,(,,)-24-9 MVR (300 °C/1.2 kg) 34 cm³/10 min; impact modified; low viscosity; easy release; injection molding - melt temperature 280 - 320 °C; available in light colors only As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Original Value	Comments

Bulk Density	0.640 g/cc	ISO 60
Density	1.20 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.12 %	ISO 62
Water Absorption at Saturation	0.30 %	ISO 62
Linear Mold Shrinkage, Flow	0.0065 cm/cm	ISO 294-4,2577
Linear Mold Shrinkage, Transverse	0.0070 cm/cm	ISO 294-4,2577
Melt Flow	36 g/10 min @Load 1.20 kg, Temperature 300 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Ball Indentation Hardness	114 MPa	ISO 2039-1
Tensile Strength at Break	55.0 MPa	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	63.0 MPa	50 mm/min; ISO 527-1/-2
Elongation at Break	>= 50 %	Nominal, 50 mm/min; ISO 527-1/-2
	100 %	50 mm/min; ISO 527-1/-2
Elongation at Yield	5.8 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	2350 MPa	1 mm/min; ISO 527-1/-2
Flexural Strength	93.0 MPa	2 mm/min; ISO 178
Flexural Yield Strength	72.0 MPa @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2.35 GPa	2 mm/min; ISO 178
Flexural Strain at Yield	6.8 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	15.0 kJ/m² @Temperature -30.0 °C	Complete break; ISO 7391/b.o. ISO 180-A
	50.0 kJ/m² @Temperature 23.0 °C	Partial break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
	NB @Temperature -60.0 °C	ISO 179-1eU
Charpy Impact, Notched	1.40 J/cm² @Temperature -30.0 °C	Complete break; ISO 7391/b.o. ISO 179-1eA
	5.50 J/cm² @Temperature 23.0 °C	Partial break; ISO 7391/b.o. ISO 179-1eA
Impact	4800	Puncture - maximum force (N); ISO 6603-2
	5700 @Temperature -30.0 °C	Puncture - maximum force (N); ISO 6603-2
Puncture Energy	50.0 J	ISO 6603-2
	55.0 J @Temperature -30.0 °C	ISO 6603-2

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+16 ohm	IEC 60093
Dielectric Constant	3.0 @Frequency 1e+6 Hz	IEC 60250
	3.1 @Frequency 100 Hz	IEC 60250
Dielectric Strength	34.0 kV/mm	1 mm; IEC 60243-1
Dissipation Factor	0.0010 @Frequency 100 Hz	IEC 60250
	0.010 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	125 V	CTI M; Solution B; IEC 60112
	250 V	Solution A; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	70.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1/-2
Thermal Conductivity	0.200 W/m-K	cross-flow; ISO 8302
Deflection Temperature at 0.46 MPa (66 psi)	135 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	122 °C	ISO 75-1/-2
Vicat Softening Point	142 °C	50°C/h 50N; ISO 306
	143 °C @Load 0.0000510 kg	120°C/hr; ISO 306
Glass Transition Temp, Tg	142 °C	ISO 11357-1,-2
UL RTI, Electrical	125 °C @Thickness 1.50 mm	UL 746B
UL RTI, Mechanical with Impact	105 °C @Thickness 1.50 mm	UL 746B
UL RTI, Mechanical without Impact	115 °C @Thickness 1.50 mm	UL 746B
Flammability, UL94	V-2 @Thickness 0.750 mm	IEC 60695-11-10
Flash Point	460 °C	ASTM D1929
Oxygen Index	30 %	Method A; ISO 4589-1/-2
Glow Wire Ignition Temperature	875 °C @Thickness 0.750 mm	IEC 60695-2-13
	875 °C @Thickness 1.50 mm	IEC 60695-2-13
	900 °C @Thickness 3.00 mm	IEC 60695-2-13
Glow Wire Flammability Index	875 °C @Thickness 0.750 mm	IEC 60695-2-12
	900 °C @Thickness 1.50 mm	IEC 60695-2-12
	960 °C @Thickness 3.00 mm	IEC 60695-2-12
Ignition Temperature	540 °C	Self Ignition; ASTM D1929

Processing Properties	Original Value	Comments
Melt Temperature	280 °C	Injection Molding; ISO 294
Mold Temperature	80.0 °C	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	ISO 294

Descriptive Properties
Electrolytic corrosion	A1	IEC 60426
Needle flame test	10 s	Method K, 3 mm; IEC 60695-11-5
	120 s	Method F, 2 mm; IEC 60695-11-5
	120 s	Method F, 3 mm; IEC 60695-11-5
	5 s	Method K, 1.5 mm; IEC 60695-11-5
	5 s	Method K, 2 mm; IEC 60695-11-5
	60 s	Method F, 1.5 mm; IEC 60695-11-5
Resistance to heat	134°C	ball pressure test; IEC 60695-10-2

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PB09892 / 92732

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